I went back through my notes i made trying to track down parts and I cant find where i got it from. My stevens has the same bolt as your springfield. Mine popped apart in the field after i pulled the trigger the entire assembly flew apart and i couldnt find half the internals. I finally broke down and bought a new bolt assembly that cost more than the rifles even worth. Sorry I couldnt be more helpfull if i find the web site ill post a link to it for you.